Emergency power supply



FIG. 1 is a front perspective view of an emergency power supply showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a rear perspective view thereof, shown in a state of use.

The broken lines depict portions of the emergency power supply in which the design is embodied that form no part of the claimed design.

The shade lines in the figures show contour and not surface ornamentation. 

CLAIM The ornamental design for an emergency power supply, as shown and described. 